Guide to Historic Iron Making

The different types of iron and iron producing processes explained.

Making iron in a Bloomery furnace, from the Viking age.

Pig iron, wrought iron, sponge iron, cast iron, steel, slag, bloomery furnace, bloom, blast furnace… yeah, it is pretty confusing isn’t it?

When it comes to iron making there are a lot of different concepts and jargon which make make your head spin, and places like Wikipedia…



Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Erik Engheim

Erik Engheim


Geek dad, living in Oslo, Norway with passion for UX, Julia programming, science, teaching, reading and writing.